Monteiro Fred Júlio Costa, Mourão Fábio Rodrigo Paixão, Ribeiro Edicelha Soares D'Athaide, Rêgo Marlisson Octávio da Silva, Frances Pablo Abdon da Costa, Souto Raimundo Nonato Picanço, Façanha Marlucia Dos Santos, Tahmasebi Roozbeh, Costa Antônio Charlys da
Superintendência de Vigilância em Saúde do Amapá, Laboratório de Vetores, Macapá, Amapá, Brazil.
Superintendência de Vigilância em Saúde do Amapá, Laboratório de Virologia, Macapá, Amapá, Brazil.
Rev Inst Med Trop Sao Paulo. 2020 Feb 7;62:e10. doi: 10.1590/S1678-9946202062010. eCollection 2020.
Aedes aegypti is associated with epidemic diseases in Brazil, such as urban yellow fever, dengue, and more recently, chikungunya and Zika viruses infections. More information about Ae. aegypti infestation is fundamental to virological surveillance in order to ensure the effectiveness of control measures in use. Thus, the present study aims to identify and compare infestation and infectivity of Ae. aegypti females in Macapa city, Amapa State (Amazon region), Brazil, between the epidemiological weeks 2017/02 and 2018/20. A total number of 303 Ae. aegypti females were collected at 21 fixed collection points, 171 at the 10 collection points in the Marabaixo neighborhood and 132 at the 11 collection points in the Central neighborhood. Among the collected samples, only two were positive for dengue virus, with a 2.08% (2/96 pools) infectivity rate for Marabaixo. The difference between the medians of Ae. aegypti females captured in Central and Marabaixo sites was not statistically significant. The findings indicate similar mosquito infestation levels between the neighborhoods, and a low-level of mosquito infectivity, although dengue virus was found only in Marabaixo. Virological surveillance of Ae. aegypti was important to identify sites of infection and determine possible routes of transmission to enable health surveillance teams to adopt preventive strategies where infected mosquitoes are present and act faster.
埃及伊蚊与巴西的流行病有关，如城市黄热病、登革热，以及最近的基孔肯雅热和寨卡病毒感染。更多关于埃及伊蚊侵扰的信息对于病毒学监测至关重要，以便确保所采用控制措施的有效性。因此，本研究旨在识别和比较巴西阿马帕州马卡帕市（亚马逊地区）在2017/02至2018/20流行病学周期间埃及伊蚊雌蚊的侵扰情况和感染性。在21个固定采集点共采集了303只埃及伊蚊雌蚊，其中在马拉baix o社区的10个采集点采集了171只，在中心社区的11个采集点采集了132只。在采集的样本中，只有两份登革热病毒呈阳性，马拉baix o的感染率为2.08%（2/96组）。在中心和马拉baix o地点捕获的埃及伊蚊雌蚊中位数之间的差异无统计学意义。研究结果表明，尽管仅在马拉baix o发现了登革热病毒，但各社区之间的蚊虫侵扰水平相似，且蚊虫感染性较低。对埃及伊蚊进行病毒学监测对于识别感染地点和确定可能的传播途径很重要，以便卫生监测团队能够在有感染蚊子的地方采取预防策略并更快地采取行动。
